Automatic dial device



Nov. 30 1926.

S. PASTOR AUTOMATIC DIAL DEVICE Filed Feb. 26, 1924 3 Sheets-Sheet 1 IHIHIE WITNESSES A TTORNEYS Nov. 30, 1926. 1,609,185

s. PASTOR 7 AUTOMATIC DIAL DEVICE Filed Feb, 26, 1924 3 Sheets-Sheet 3 WITNESSES MENTOR %Zzw ,S'anlosfaw'lorz 0% A TTOR/VEYS rushed Nov. 30,1926.

1,609,185 FICE UNITED STAT sam'os rns'roa, or NEW roman. Y.

AUTO IATIC DIAL DEVICE.

' Application flled February 28, 1924. Serial No. 695,357.

The present invention. relates to new and useful improvements in telephony, and it pertains more particularly to telephone sys terns of the automatic type.

In telephone systems of the above-mentioned type, sub-stations are called by means of impu ses sent over the line by a manuallyoperated sender. The impulses are sent out in groups and eachgroup requires a manual operation on the part of the party operating the sender. The manual operation mentioned is tedious and time-consuming, and requires close attention on the part of the caller to avoid mistakes.

In systems of this character, it often happens that a party will have occasion to call the same line several times during the course of a day, and considerable time is thus consumed in carrying'out the manual operations necessary to make the several calls.

It is one of the primary objects of the present invention to combine with such a system means whereby a predetermined line may be called with but a single manual operation 'as distinguished from a manual operation for each group of signals in the ordinary automatic system.

It is a further object of the present invention to combine a mechanical mechanism for automatically sending a plurality of signal impulses over a telephone line with the conventional sub-station mechanism, without in any way interfering with the normal operation thereof.

It is a further object of the invention to provide means whereby either of a plurality of such sub-stations may be selectively called.

It is a further object of the invention to provide means of the above mentioned character which is capable of attachment to a dial-operated or controlled sub-station without changing the internal construction thereof.

.It is a further object of the invention to provide means of the above-described character that will'permit of the sub-station receiving incoming calls and making calls by means of the dial mechanism and in the ordinary manner.

It is a further object of the invention to construct the mechanism in such a manner that after a manual operation thereof, the same will return .automatically to normal position.

The invention consists broadly of manually operated means preferably mechanical,

adapted for attachment to a telephone substation apparatus of the dial-operated type. The mechanism serves to send out a plurality of call signals in the form of impulses without 1n any way interfering with the normal operation of the sub-station apparatus.

W1th the above and other objects inview, reference is had to the accompanying drawin s, in whichigure 1 is a vertical sectional view of an apparatus constructed in accordance with the present invention, taken on the line 1 1 of Fig. 2;

Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1;

Fig. 3 is a detail view partly in elevation and partly in section showing the impulse sender in operation;

Fig. 4 is a horizontal sectional view taken on the line 4-4 of Fig. 1;

Fig. 5 is a detail perspective view on an enlarged scale, showing the manner in which the impulse sending mechanism is o erated;

Fig. 6 is a detail view showing t e manner of operation of certain contacts employed in connection with the device, the contacts being shown in closed position;

Fig. 7 is a similar view showing the contacts in open position; I

Fig. 8 is a detail view in elevation of a portion of the mechanism;

Fig. 9 is a diagrammatic view of the circuit employed in connection with the mechanically-operated device.

Referring more particularly to thedrawings, the device comprises a cabinet 10 of any desired sha e, and extending longitudinally of such ca inet on the interior thereof and mounted in suitable supports 11, there is a shaft 12. Carried by this shaft 12 in spaced relation 'toone another, there is a plurality of impulse-sending-mechanismoperating elements. In the present instance there are three of these devices and they are designated by the reference characters A, B and C. While in the presentrinstance there are'three of these devices shown, it is obvious that more or less as desired may be employed without departing from the spirit of the invention. The impulse-sendingmechanism-operating element A is the master operating element, and it comprises a plurality of disk-like members 13 arranged in spaced parallel relation and each of these members 13 is connected with its next adjacent member by an angularlydisposed section or portion 14. I This construction makes the peripheral edge of the several memhere 13 continuous, and such construction in the master impul'se-sendin '-mechanism-operating element is desired or a reason to be hereinafter more clearly set forth. 7 The extreme right-hand memben 13 is provided with an angularly-dis osed lug or wing 14,

while the extreme le t-hand member 13' is.

rovided with an angularly-disposed lug or in" 15, the pur ose of which will be hereinafter more ful y described. 7

Each of the other impulse-sendmg-mechanism-operating elements comprises a lurality of disks suitably secured toget er in spaced parallel relation, there bem however, no connection between the 1sks in these impulse-sending-mechanism-operating elements as in the master impulse-sendingmechanism-opleratinig element, and heneein; y di er-from the master '1m-- pulse-sendin -mechanism-operating element.

this respect t e The disks 0 each of the impulse-sendingmechanism-operating elements are provlded on their peripheral edge with a plurality of projecting lugs or the like, 13, the purpose in Fig. 4. Carried by the gears D, E' and F, there are small gears G, H and J, respectively, and these small gears when rotated are adagted to drive their respective larger gears 'E and- F. These small gears G, H and J are driven b means of reci rocating racks K, L and tive y, and these racks are carried by the lower end of the keys 17 18 and 19, respectively. Each of these keys is reciprocatingly mounted in asuitable bushing 20 in the top wall-of the cabinet, and surrounding each of the keys there is a spring 21 which serves to maintain the key in normal extended position.

Secured at one end to the shaft 12 and at the other end to a pin 22 carried by one end of the cabinet, there is a spring 23, and said spring serves to return the shaft 12 to normal sition after an operation thereof by the epression of one of the keys 17, 18 and 19.

-Extending longitudinally of thecabinet there is a suitable support 24, and'mounted upon the upper face of the support .there is a guide or channel member 25. Slidably mounted in this guide or channel member 25, there is a strip 26and-said strip 26 carrespecries' a plurality of bearin blocks or the like, 27, 28 and 29.' By t is construction when the strip 26 is reclprocated or moved in the ide 25, all of the bearing blocks 27, 28 an 29 will be moved simultaneously. Pivotally mounted in each of the blocks 2 28 and 29, as at 30, there is a rocking lever 31, havinq a forward extension 32 and a downwardly extending arm 33. Projecting" forwardly from the block 27, there is a forked member 34, and said forked member is adapted to receive one of the members14 of the master i1npulse-sending-mechanismoperating member A. By this construction,

as the master impulse-sending-mechanismoperating member A is rotated the block 27 and the strip 26 will be moved longitudinally of the guide 25, which mechanism serves to simultaneously move the blocks 27, 28 and 29. Asthis forked member engages either of the angularly disposed lugs or ears 14' or 15, the sliding movement of the strip 26 is stopped, as is also the rotary movement ofthe master impulse-sending-mechanisrn operating member A.

Mounted'upon the support 24, there is a plurality of impulse senders designated by the. reference characters X, Y and Z. All of these im ulse sending mechanisms are of the same onstruction, and the description of one therefore will sufiices Referring to Fig. 5, it will be noted that these impulsesending mechanisms comprise a plurality of blocks 40 of suitable insulating material, which blocks are secured to ether by means of screws or the like, 41. ecured between these blocks 41, there isa T-shaped meniber 42, and carried by the lower end of each of the T-shaped members 42, there is abind-, ing post 43 to which isconnected a conductor. Mounted on one of the blocks there' is a contact 44 having a contact point 45,' and carried h each of these contacts 44 there is a bin ing post 46 to which is con-- nected a suitable conductor.

By reference to Fig. 1, it will be noted that each of'the keys 17,18 and 19 is rovided with a cam member 60-interme iate its ends. cam members there is a reciprocating member 61, having a roller 62 adapted to be en-. gaged by the cam member to reci rocate its respective member 61. Each 0 these reciprocatingmembers' is adapted to control contacts, which contacts are desi ated by the reference characters N, 0 an P in gessedthe contacts are broken as shown in "lhe operation of each of the keys and the impulse sendingmechanism operating elements being the same, it is necessary to describe the operation of one only, and in thisdescription the operation of the key 17 and the master impulse-sending-me'chanismoperating element will be described in detail.

Referring to Fig. 9,.the reference character It designates the sub-station apparatus including a dial device D in the signal circuit of the system, the impulse senders being designated by the reference characters X, Y and Z, which are connected in the signal circuit through the device D, and the contacts .in the cabinet bein designated by the reference characters N, and P as heretofore described.

With the parts in the position shown in the drawings, if the key 17 be depressed, through the medium of the rack bar K the gear G will be rotated. This gear serves to rotate the gear D, and through the. me-

- dium of the gear A the shaft 12 will be rotated and the spring 23 placed under tension. As the shaft 12 is rotated, through the medium of the forked member 34 the strip 26 and the parts carried thereby will be moved from the position shown in Fig. 2, that is, to the right of the master impulsesendingmechanism-operating element A, to the position shown in Fig. 5 to the extreme left of the master impulse-sending-mechanism-operating element A and into engagement with the stop. 15. .As this key 17 is depressed, the cam-face thereof will engage its respective reciprocating member 61 and move the resilient contact members of the contacts N to the dotted-line position shown in Fig. 9. If, now, pressure on the key 17 be released, under the influence of the spring 23the shaft 12 will be rotated in the opposite direction to that in which it is rotated by the rack K, and as it rotates in this direction the lugs 13 of the several disks of the master impulse-sendingmechanism-operating element will engage the forward extension 32 of its respective lever 31, rocking the lever about its pivotal point 30, and through the medium of the end 33, make and break the circuits at the contacts 44:, which is designated at X in Fig. 9. As each of the lugs 13' engages the forward extension 32 of the lever 31, one

.i,impulse is sent out and the series of imscribed: When the contacts N are broken,

gagement with each other, the circuit con-.

trolled by the impulse senders Y and Z will not be broken, and, consequently, these impulses will not be sent over the line. In or- .der to send impulses by the impulse senders Y and Z, it is necessary to depress the key 18 of the impulse-sending-mechanism-operating element B or the key 19 of the impulse-sending-niechanism-operating element C, since these keys upon their depression operate to open the contacts 0 and P, respectively, so that their circuit may be interrupted-by the impulse senders Y and Z dependent upon the key depressed.

From the foregoing it is apparent that the present invention provides a mechanical mechanism which upon a single manual operation, i. e., that of depressing a key, will call a certain station without requiring a dial operation on the part of the caller, and by elimination of the dial operation, considerable time in the operation of a tclephone sub-station for the purpose of calling a called station is reduced.

What is claimed is:

1. In a telephone system, a plurality of branch circuits connected in parallel with the signal circuit of the system, an' impulse sending mechanism associated with each of said branch circuits for optionally sending different impulse signals over the signal circuit, and means for selectively operating the impulse sending mechanisms to send any one of the different impulse signals over any one of the branch circuits as the result of a single manipulation.

2. In a telephone system, a plurality of branch circuits connected in parallel with l the signal circuit of the system, an impulse sending mechanism associated with each of said branch circuits for optionally sending different impulse signals over the signal circuit, means for selectively operating the impulse sending mechanisms to send any one of the different impulse signals over any one of the branch circuits as the result of a single manipulation, and means associated with each branch circuit serving to render the impulse sending mechanisms of the non-selected branch circuits inoperative as impulse senders.

3. In a telephone system, a plurality of oranch circuits connected in parallel with the signal circuit of the system, an impulse sending mechanism associated with each of said branch circuits for optionally sending different impulse signals over the signal circuit, means for selectively operating the impulse sending mechanisms to send any one of the different impulse signals over any one I la ' sending a predetermined impulse si of the branch circuits as the result of a single manipulation, means for simultaneously cuit to permit the sending of an im ulse signal, and means for actuating sai cam-operated means to close the related branch circuit subsequent to the impulse signal-sending operation.

5. In a telephone system, a plurality of branch circuits, connected in parallel with the signal circuit of said system, a plurality of impulse sending mechanisms associated respectively with said branch circuits, said impulse sending mechanisms operable for sending a predetermined impulse signal over the branch circuits respectively to the signal circuit by a single operation, each of said mechanisms including cam-operated means for normally closing its related circuit and operable to open said circuit to permit the sending of an impulse signal, and springactuated means for actuating said cam-operated means to close the related circuit subsequent to the impulse signal-sending operation. a

- 6. In a telephone system, a plurality of branch circuits, connected in parallel with the signal circuit of said system, a plurality ot'impulse sending mechanisms associated respectively with said branch circuits, said impulse sending mechanisms operable for sending a predetermined impulse si nal over "break devices, a cam associated with one of said make-and-break devices, an impulse element associated with the'other of said make-and-break devices, gearing connected to said impulse element, a spring actuated key, said cam being carried by said key, and a gear rack carried by said key which cooperates with said gearing, the movement of said key causing the operation of vone of said make-.and-break devices to first open the related branch circuit to permit the sending of an impulse signal, and to subse quently close the branch circuit upon the return movement of said key.

7. In a telephone system, manually operated mechanism for sending a predetermined impulse signal over a signal circuit of said system by a single operation of said mechanism, said mechanism comprising a cam operated means for normally closing said circuit and operable to open said circuit to permit the sending of the impulse signal, a spiral impulse element mounted for rotation and having projections on the periphcral edge thereof, a make and break device in said circuit operated by the projections when saidv impulse element rotates in a signaling direction, means for rotating said impulse element in a non-signaling direction, means operable for rotating said impulse element in a signaling direction to cause the projections thereon to actuate said make and break device to send a redetermined i'mpulse signal over said circuit, and means which coacts with portions of said impulse element causing said make and break device to travel in response to the movement of said impulse element whereby to be acted on by a predetermined number of said projections.

SANTOS PASTOR. 

